A Gram-negative bacteria will have a peptidoglycan layer tha…

A Gram-negative bacteria will have a peptidoglycan layer that is sandwiched between two plasma membranes and will stain purple.

Human males are more often affected by sex-linked recessive…

Human males are more often affected by sex-linked recessive traits than females because _________ .

If an atom has 43 electrons, 56 neutrons, and 43 protons, what is its approximate atomic mass? What is the name of this element? periodic-table.png

Oxygen has an atomic number of 8. When it is uncharged, an oxygen atom will have __________ electrons in its outermost (valence) electron shell.

Each chemical element has a unique atomic number, which indicates the number of ________ in its atoms.

Each chemical element has a unique atomic number, which indicates the number of ________ in its atoms.